Power table trough



March 24, 1931. EAMES ET AL I 1,797,908

POWER TABLE THOUGH Filed July 2, 1926 ter.

Patented Mar. 24,1931- UNITED sr'rs PATENT orricis.

GEORGE M. EAMES, on nnincnronm, CONNECTICUT, AND IRVING F. WEBB, or ELIZBETH, NEW JERSEY; ASSIGNORS are THE siNGnn MnNrJnAc'runINc COMPANY, 01*ELIZABETI -NEW JnRsnY, A CORPORATION on NEW JERSEY c v rownn TABLETHOUGH lApplication filed July 2, 1926 Serial No. 12 0,0 15;

' This inventionrelatesitoimprovements in power-tables forsewingjmachlnes and the like, and more particularly in troughconstructions for power-tablesof this charac- For certain classes ofwork, it has been a common pract ce in the construction of sewlng'machine 'powerrtables to provide work-receiving troughs longitudinallyofthe V table-tops thereof. Various expedients have been employed forsupporting the troughs, a very common type Comprising specially shapedbrackets which'were secured to the table-legs or cross rails and towhich brackets the side and bottom membersof the troughs Weresuitablybolted. Brackets of this character of course add material to the cost ofa power-table both as to material and in time consumedin bolting thetrough members thereto. Furthermore, brackets-of this character are inthe main capable of being used only with the particular table-structurefor which theyhave been designed, diiierent constructions being usuallyrequired for single and double types of tables, In some instances, thetrough members have been permanently assembled byrigidly-securingtheside members to the bottom member and the assembledtrough was then suspended from the table-top or its supportingstructure. This latter expedient, owing to transportation difficulties,however, requires considerable time and therefore expense in installinga powertable. I 7 a The present invention has for its objects tosimplify the construction of a power-table trough to provide a troughequally adaptable to single and double types of power-tables; to'provide'for the ready conversion of a fiat-typepower-table to thetrough type, and to provide a construction permitting of the readyattachment of a' trough to-table structures of different charactersw V.In the preferred embodiment of the pres ent invention, the sideanembersof the trough are free of auxiliarybrackets and securing bolts andinstead of being suspendedfrom the table-structure, they are clampedthereto by interposing said side-members between the table-top and thetroughbottOm Clampedby i suitable bolts to the overlyingtable-structure.

A shoulder-joint connectionlbetw'een the-lower edges of the side-membersand the bottommember is employed to facilitate assembling of the partsand to restrain the lower edges of said side-members against lateralmove ment, theupper edges of the side-members being held againstmovement by the regular table structure. Only one clamping bolt needbeemployed at each end of a table-section and'aside from an. underlyingclamp-plate for supporting adjacent ends of bottom trough-members in asectional power-table, the clamping bolts referred to constitute thesole means additional to. a table-structure for supporting its troughr:

In the accompanying drawings, Fig. "1 is an end view if the'double typeof power c table, showingthe upper portion only of the 'table legs.Fig.2 is an enlargedcrossssection substantially on the line AA, Fig. l,and illustrates the connection between a cent table-sections. Fig.3 is acentral longitudinal section of theIpower-table, i.'-e., substantiallyon the line BB, Fig. 1. Fig; 4 is a transverse cross-section, partly inelevation, of the single type of power-table.

The drawings illustrate a tablesupporting structure constructedsubstantially in accord ance with that-more fully disclosed, in my priorpatent application, Serial No. 95,848,

filed March19,'1926- Said supporting strum ture includes primary,channehbar leg members '1 of which the upper ends are entered bysecondary, channel-bar leg-1I1embers2for vertical adjustment therein,the-complemen c tal leg-members being secured in adjusted position as bymeans of a bolt 3. The upper ends of the leg-members 2 are-eachrigidlysecured, as by Welding or .r'ivet ng, lthm gitudinal edges of anintermed (not shown) bridging the space b the channel of an invertedU-shaped channelbar t comprising a transverse rail for supporting thetable-top, it being of course understood that a rail with its supportinglegmembers is disposed. at the abutting ends of adjacent table-sectionsas well as at the tableends. As shown more clearly in Fig. 2 of thedrawings, the rails 4 are connected by cross-rods 5 secured upon therails by bolts,

as 6.'the flattened ends of the cross-rods 5 overlapping on the 'railssupporting the tops of adjacent table sections.

In adouble type of power-table, as shown i n,;lligs.1, Qand 3 of thedrawings, the rails {l carry front and rear .IllflCl'llnG-supDOItlD"planks, as 7, the abuttingends of corresnonding planks of adjacenttable-sections being secured upon the rails t by bolts, as SJconnectingupper clamp-members 9 and lower clamp-plates 10. At theoiiter ends' ofthe power-table, a strlp 11 is inserted under the upper cla1np member 9,in lieu of a ma .hinesupporting plank of a succeeding table-secflat-tyrietable are omitted and strips, as 13, i

are substituted therefor to cover the rails 4. From the foregoing 1t isto be understood that the inachme planks and the supporting? structuretherefor are standard for flat'and trough types .oftables. I

VVh'le the present improved trough has been applied to a powertable ofthe construction des'eribedits principle of'eonstruction is such as torender. itadaptable for va ious makes of power-tables and therefore thepresent'invention has a wide scope of commercial application. As shownintheJdrawings, the trough comprises inclined side-members 1% convergingtoward and seatedupon a bottommember 15. shoulder-joint connection being formed between'the lower edges of the side-members and the botto1nmeniber by, in the present instance, forming rabbets 16 in. thelongitudinal edges of the bottom-mem ber 15 and'by correspondinglyshaping said lower edges of the side-members 14c. The upper cornersof'the side-members 14 are cut away to provide coinpleniental notches 17receiving the'rails ,"whil-e the longitudinal'edgesof said side-members14 are preferably beveled at' their outer sides 'to form Verticalsurfaces resting against the crossrodsb'." i 'i The side-members ll andthe bottom-members'15 each extend the length of a table-sec tion and theabutting ends 18 of the bottominen' b'ers of adjacent table-section's are each supported by an underlying clamp-plate 19 apertured to receive abolt 20 passing through alined apertures in the rail 4 and the strips 13overlying said rails. By tightening the nut 21 0f the bolt 20, the upperedges of the side-members 1 are clamped against the planks 7, i. e., inthe recesses 12 thereof, said side-members being held against lateralmovement by the cross-rods 5 and the bottomniember rahbets l6.

From the foregoing, it will be understood that the securing means forthe trough of a table-section in addition to the regular tablestructure,comprises merely a clamp-plate 19 and a bolt20 disposed at eachend of atable-section and that one bolt and clampplate suflice for rigidlysecuring the abutting trough ineinber ends of adjacent table-sections.Aparticularfeature of the present improvement is the facility with whichthe trough-members may be assembled in applythem to a power-table. Thetrough bottom-niembers are firstloosely suspended below the table by thebolts 20 to providesuffi- 'cient' clearance for individuallvinserting.the

sidene n ers'and after insertion ofthe sidein'embers, the: nuts 21flaretightened to rigidly clamp v the several members, in position. should ithe desired to remove either of the planks 7 for any reason, this maybedone without dismantling the trough, because the walls of thesideanember notches 17, together with the cross-rods and the rabbelts:16 pre vent any naterial movement of the side-members 14 in the absenceof the planks 17.

Preferably the trough is'closedat the ends of the power-table bytransverse end-members 22 eachsupported by an end clamp-plate 19 andextend ng w thin the channel of a rail 4, being of course held n th spos tion by the bolt 20 at the end of the table. .If desired,

the eno-members'22 may be each provided witha clean out aperture 23which maybe normally closed by a closure-plate 24,,pivotally securedupon the 'n einber .22 by a screw 25. Shouldit desired to divide thetrough into sections correspoi'iding to the length'fof thetable-sections, adjacent diyision-walls 26 and 27, as shown in Fig. 3 ofthe drawings, may be inserted in the channels of the rails i so as to bedisposed transversely of the length of the trough, said walls beingsuitably shaped to correspond to the contour of the trough and adjacentwalls being vertically moved to provide an. aperture for a bolt20. i

The power-table illustrated in Fig. differs from the' one heretoforedescribed hay: ing a shorterrail 4 to carry a jinachine sup,- portingplank? at Lone end only of said rail, i. e., it is single typepowertable. Secured upontheiend of each rail opposite to the plank'i, bya U shaped clamp 28 and a'bolt 29, is an undercut strip 30 eict endin g'longitudi n'ally of the table functioning to clamp points ofadjacenttrough sections and pro the transverse strip 13 to the rail. Inthis type of table, the rear side member of the trough is clampedagainst the recess walls of the strip 30 instead ofagainst the table-topplank Y.

Having thus set forth the nature of the invention, what we claim hereinis: p

l. A trough construction for power-tables including a table-topsupporting structure, comprising a "trough botton'i-niember, in clinedtrough side-members interposed be tween the bottom-member and thetable-top, and means detachably clamping the trou h bottom-memberagainst the interposed sidemembers to thereby clamp said sideand hottom-members to the table-top, a shoulderjpint constituting theConnection between the sideand bottom-members to restrain said sidemembers against lateral movement in clamped position. I

2. In a power-table, the combination with a table-top, and transversetable-top supporting rails, of a trough disposed longitudinally of saidtabletop, said trough comprising side-members recessed to provideclearance for said rails and a trough bottom-member sustainingsaid'side-members,,.and bolts connesting said rails and'the troughbottommember to thereby clamp the trough'sidemembers against thetable-top.

3. In a power-table, the combination with a table-top, and a table-topsupporting structure, of a trough disposed longitudinally of saidtable-top comprising sectional units each composed of sideandbottom-members, clamp-plates underlying-the abutting ends of adjacentbottom-members, and bolts extending through said trough connecting saidclamp-plates with the table-structure and clamping said bottom-membersagainst the trough side-members to thereby clamp said side-membersagainst the table-structure.

4. In a power-table, the combination with a table-top, and a tabletopsupporting structure, of a trough comprising a bottom-1nem-- ber,side-members converging toward said bottom-member, trough-end closingmembers, clamp-plate underlying the adjacent ends or". saidtrough-bottom and trough-endclosing members, and bolts connecting saidclampplates with the table-structure for simultaneously clamping all ofsaid members in troughforming position.

5. In a power-table, the combination with a table-top, and'a pluralityof table-top supporting channel-bar rails disposed 'tansversely of thelength of the table-top, of a sectional trough disposedlongitudinally ofsaid table-top comprising abutting bottom member sections, sideunembersections converging toward said bottom-members, trough-end closingmembers projecting within the channels of the table end-rails, troughdividing members disposed at the abutting jectingwithin the channels ofthe intermediate rails, clamp-plates underlying the ends of saidbottom-member sections, and bolts connecting said clamp-plates with saidrailsto thereby simultaneously clamp all of said members I intrough-forming position.

, 6. A power-table, comprising table-supportingstandards, a table-topsustained by said standards, and a 'troughdisposed longitudinally ofsaid tabletop, said trough consisting of sideand bottom-members, and securing means located between the side-members and in the trough engagingthe bottommember to clamp the side-members to the table-top.

'2'. A trough-type power-table, comprising supporting standards,including end-rails disposed transversely of the length of thepower-table, a table-top sustained by said end-rails, a troughcomprising bottom and opposed side-members disposed longitudinallyof thepower-table and extending below said rails, and trough-securing meansdepending from the end-rails exerting a force on the bottom-member belowsaid rails in a direction toward the table-top for thereby detachablyclamping the trough sidemembers in trough-forming position upon thetable structure. 7

8. A trough construction for power-tables having table-top supportingend-rails, comprising a trough bottom-member, inclined troughside-members interposed between said said bottom-member and thetabletop, trough-members being disposed longitudinally of the table-topand eXtending below said end-rails, securing means depending from theend rails exerting a force upon the bottom-member below said rails in adirection toward the table-top for thereby clamp ing the troughside-members upon the table structure, and means for restraining thetrough side-members against movement crosswise of the troughbottom-member.

9. A trough construction for poweretables having table-top supportingend-rails, a trough bottom-member, inclined trough sidemembersinterposed between vthe trough bottom-member and the table-top, saidtrough members being disposed longitudinally of the table-top andextending below said end rails, and bolts depending from said end-railsexerting an upward pull upon the trough bottomanember below theend-rails ior were by detachably clamping the trough side membersagainst the tabletop.

tables having table-top supporting end-rails,

comprising a trough bottom-member disposed ata substantial distancebelow said end-rails, trough side-members converging toward thebottom-member, said troughmembers providing a continuous trough openingbetween the ends of the power-table and extending below said end-rails,means (iii exerting a force in the direction of the tabletop fordetachably clamping the trough sidemembers between the troughbottom-member and the table-top and means for holding both side edges ofeach of said side-members against lateral' movement in clamped position.

In testimony whereof, We have signed our names to this specification.

GEORGE M. EAMES. IRVING F. WEBB.

